Force limit

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A force limit is a soft limit on how many ships or regiments a country can possess. It can be exceeded at a monetary price.

If a country goes past its force limit the maintenance cost per unit will increase by twice as many percent as they are above the force limit, eventually making further expansion of the army or navy prohibitively expensive.

There are two independent force limits, one for naval units and one for land units, but both operate largely the same.

Computing force limit[edit]

Province modifiers[edit]

Provinces contribute to the force limit through their development level and through the following modifiers and buildings. Note that only coastal provinces may contribute to a country's naval force limit.

Condition Land force limit Naval force limit
Per development +0.1 +0.1
Trade good bonus: Grain
(only with Rights of Man.png Rights of Man)
+0.5 0
Trade good bonus: Naval supplies
(only with Rights of Man.png Rights of Man)
0 +0.5
Regimental Camp +1 0
Conscription Center +2 0
Shipyard 0 +2
Grand Shipyard 0 +4
Important center of trade 0 +2
Being in trade company 0 +0.5
Local autonomy (per 1%) -1% -1%*
  • Note: Having the province under control of the Nobility.png nobility, Cossacks.png Cossacks, or Tribes tribes estates will remove the effect of local autonomy on land force limit, while the Burghers.png burghers estate removes the effect of local autonomy on naval force limit. (only with The Cossacks.png The Cossacks)

Country modifiers[edit]

Condition Force limit modifier
Land Naval
Base for every nation +6 +12
Army Organizer advisor +10% 0
Subject nation -3 -6
March nation +30% +30%
Trading in bonus: Grain +20% 0
Trading in bonus: Naval supplies 0 +20%
Being the revolution target +40% +40%
Being an invading nation +100 +100
Fortified House unique native building +10 0
Per large colonial nation +5 +10
Per state of the Holy Roman Empire
(Emperor only)
+0.5 0
Per Officer's Mess (trade company investment) +5 0
Per Admiralty (trade company investment) 0 +5

More sources of force limit[edit]

Ideas and policies[edit]

Ideas and policies that increase force limits:

Land force limit

Land force limit modifier.png Traditions Ideas Bonuses Policies
+50%
  • Russian idea 4: Life-Long Conscription
  • Full Quantity
+33%
  • Scottish traditions
  • Muscovite ambition
  • Ottoman ambition
+25%
  • Chickasaw traditions
  • Daimyo traditions
  • Nepali traditions
  • Satake traditions
  • Sindhi traditions
  • Hessian idea 6: Hessian Mercenaries
  • Moldavian idea 3: Upper Boyars
  • Permian idea 7: Permian Army Reform
  • Ryazan idea 1: The Arsenal of Ryazan
  • Tripuran idea 4: Extended Military Control
  • Rûmi ambition
  • Sukhothai ambition
  • Welsh ambition
+20%
  • Arawak traditions
  • Imagawa traditions
  • Incan traditions
  • Mazovian traditions
  • Shoni traditions
  • Toki traditions
  • Tverian traditions
  • Offensive idea 6: Grand Army
  • Albanian idea 1: All Lands Under Skanderbeg
  • Ando idea 3: Clan Unification
  • Ava idea 2: Rajadhiraja
  • Cornish idea 5: Cornish Royalist Army
  • Deccani idea 4: Empower the Paigah
  • Hosokawa idea 4: The Eastern Army
  • Mori idea 2: Leader of Kokujin Ikki
  • Thomondian idea 2: Subdue the Clans
  • Baluch ambition
  • Lan Xang ambition
  • Laotian ambition
  • Somali ambition
+15%
  • Roman idea 4: The Roman Legions
  • Tyrone idea 4: Arming the People
+10%
  • Diplomatic-Quantity: The Pen Relies on The Sword Act
  • Economic-Quantity: Agricultural Cultivation
  • Quantity-Expansion: Colonial Garrisons

Naval force limit

Naval force limit modifier.png Traditions Ideas Bonuses Policies
+50%
  • Dutch traditions
  • Maritime idea 4: Grand Navy
  • Danish idea 5: Found the Copenhagen Dockyard
  • Knights Hospitaller idea 6: Scourge of the Corsairs
+33%
  • Gutnish idea 6: Gutnish Merchant Navy
  • Cypriot ambition
  • Maritime-Expansion: Naval Infrastructure
+25%
  • Sulawesi traditions
  • Exploration idea 7: Global Empire
  • Berber idea 1: Barbary Pirates
  • Candarid idea 6: Sinop Shipyard
  • Couronian idea 5: Couronian Colonization
  • Estonian idea 2: Baltic Ties
  • Genoese idea 6: Setup the Office of Grand Admiral
  • Hadramhi idea 5: Sailors of the Indian Ocean
  • Hormuz idea 7: Hormuzi Naval Expansion
  • Ionian idea 5: Naval Expansion
  • Kono idea 1: Shugo of Iyo
  • Leonese idea 5: Expand the Leonese Navy
  • Orissan idea 7: Heritage of the Sadhabas
  • Pomeranian idea 7: German Navy
  • Sumatran idea 7: Rule of The Sea
  • Venetian idea 1: Venetian Arsenal
  • Breton ambition
  • Cham ambition
  • Hamburger ambition
  • Malagasy ambition
+20%
  • Navarran traditions
  • Mogadishan idea 6: Horn of Africa
  • Naxian idea 1: Maritime State
  • Ragusan idea 4: Ragusan Arsenal
  • Sligonian idea 6: Sligo's Naval Ambition
  • Al-Haasa ambition
+15%
  • Croatian traditions
  • Naval-Maritime: The Naval Supremacy Act
+10%
  • Aragonese idea 2: Protection of the Coastlines
  • Provençal idea 6: Toulon Dockyard

Government[edit]

Land force limit[edit]

Type Modifier
Steppe nomads +10%/+20%/+30% depending on government level
Tribal Federation +10%
Dutch Republic +25% if the Orangists are in power
Revolutionary republic +20% if the Girondists are in power
Shogunate +0.5 land force limit per subject daimyo if Sword Hunt decision has been taken (only with Mandate of Heaven.png Mandate of Heaven)
Daimyo −2 if subject to the Shogun who has taken the Sword Hunt decision (only with Mandate of Heaven.png Mandate of Heaven)

Naval force limit[edit]

Type Modifier
Dutch Republic +10% if the Statists are in power

Subjects[edit]

NOTE! This section is outdated. In 1.26 "Vassals provide a percentage of their forcelimit to the Overlord." How much, is uncertain.

  • Vassals and client states give Land forcelimit.png+1 land force limit to their master.
  • Marches give Land forcelimit.png+2 land force limit to their master.
  • Large (more than 10 provinces) colonial nations give Land forcelimit.png+5 land force limit and Naval forcelimit.png+10 naval force limit to their master.
  • Junior partners in a personal union don't increase the land force limit of their masters.

Following ideas and policies that increase force limits increased by subjects. For example, an increase of 100% would mean that all above mentioned bonuses would be doubled (4 instead of 2 force limit from marches).

Vassal forcelimit bonus.png Traditions Ideas Bonuses Policies
+100%
  • Influence idea 7: Marcher Lords
  • Ashikaga idea 7: Reform the Shogun - Shugo System
  • Bosnian idea 5: Land of Princes
  • Influence-Aristocratic: Autonomous Estates
  • Influence-Economic: Vassal Obligations Act
  • Influence-Offensive: Unified Army Command
  • Influence-Administrative: Vassal Integration Act
  • Plutocratic-Influence: Full Sovereignty Act

Effect on maintenance[edit]

If a country has more land or naval units than the corresponding force limit, maintenance for those units will be multiplied by the ratio of units to the force limit, with the units over the force limit counting twice[1]. \text{Maintenance increase} = \frac{\text{Force limit}+\text{Number of units over the force limit}\cdot 2}{\text{Force limit}}

For example, having 12 regiments of infantry while at a force limit of 10 will increase maintenance for all regiments by 40%, independent of the type of unit.

As can be seen, going over the force limit will very quickly increase the maintenance costs and should only be done when absolutely necessary. Going over the land force limit will not increase the costs for naval units and vice versa.

Total maintenance cost[edit]

The total maintenance cost of an army or navy is:

\text{total maintenance cost} = \text{average base maintenance}\cdot\text{number of units}

Or, when above force limit:

\text{total maintenance cost} = \text{average base maintenance}\cdot\text{Maintenance increase} \cdot\text{number of units}

In this case, when above the force limit:

  • A multiplier to force limit has the same effect as a reciprocal multiplier to maintenance.
  • The number of units that can be fielded for a fixed maintenance cost grows as the square root of the force limit.

Footnotes[edit]

  1. See in /Europa Universalis IV/common/defines.lua
Warfare
Land warfare ArmyLand unitsDisciplineManpower
Naval warfare NavyNaval unitsSailors
Other concepts Casus belliWar exhaustionMilitary traditionLeadersAlliance